F118 engine qualified
A nut having 12 drive points, 24 sides, and an integral washer which extends beyond the points or periphery. An integral feature is incorporated for locking on the threads of a mating member.
Classification: Nuts of iron or steel
NSN 5945-01-271-4903
NSN 5960-00-081-1937
NSN 6610-01-152-1463
NSN 5935-00-312-6030
NSN 6610-01-023-6073
NSN 6145-00-910-8847
NSN 6240-01-180-9207
NSN 5895-01-029-1398
NSN 6220-01-038-8292
NSN 6610-01-503-5656
NSN 5990-01-178-6307
NSN 5910-00-279-7318